Cathedral: The Fight to Save the Ancient Hemlocks of Cook Forest

The story of the efforts to save the hemlock trees of Cook Forest State Park, Pennsylvania, which are under attack by the Hemlock Woolly Adelgid (HWA), a destructive insect discovered in Cook Forest in 2013. The insect has already killed thousands of trees in the eastern United States. The documentary includes interviews with park staff and is narrated by Old-Growth Forest Network founder Joan Maloof. The film takes the viewer on a journey through the forest in all seasons and shows the important work being done by the Pennsylvania Department of Conservation and Natural Resources and the Pennsylvania Bureau of Forestry.